[BUG] [useragent] JavaScript Useragent doesn't include Lighthouse

[Raul Peixoto]

I'm not 100% sure if this bug is specific to PSI, or something that comes from the developers tools emulation it uses, but here's the situation:

When we use the PSI tool via https://developers.google.com/speed/pagespeed/insights/ to test a website, Nginx, Apache, PHP, etc, will all detect the correct useragent, which includes a reference to Lighthouse.

However, if we use javascript to detect the useragent, it simply reports an incorrect useragent, probably the emulated version instead of the one above.

Proof of concept for the Desktop tab:

https://developers.google.com/speed/pagespeed/insights/?url=https%3A%2F%2Fpeixotorms.github.io%2Ftests%2FPSI%2Fjs.html&tab=desktop

Please fix.

I have opened a topic back in December and no dev has commented on it.

[Raul Peixoto]

Also turns out that when using the api:

https://www.googleapis.com/pagespeedonline/v5/runPagespeed?url=https://peixotorms.github.io/tests/PSI/js.html

Javascript is reading it's useragent from the networkUserAgent field.

PSI should properly report it's username in a consistent way.

[atc.adv...@gmail.com]

Hello,

Is there something wrong with PageSpeed Insights ?? the records of my website today seems to be wrong